﻿using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace ConsoleApp1
{
    class Program
    {
        static void Main(string[] args)
        {
            Cat a1 = new Cat("小猫");
            a1.Fly();
            Bord a2 = new Bord();
            a2.Fly();
            Monky a3 = new Monky();
            a3.Fly();
        }
    }
}
